[Bug documentation/11106] java documentation

[Bug documentation/11106] java documentation

[fche at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=11106

Frank Ch. Eigler <fche at redhat dot com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
         Resolution|---                         |WORKSFORME

--- Comment #2 from Frank Ch. Eigler <fche at redhat dot com> ---
no recent complaints

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[Bug documentation/11106] java documentation

[mjw at redhat dot com]

------- Additional Comments From mjw at redhat dot com  2009-12-18 18:09 -------
Some pointers:

- Stuff that just works (tm)
  - VM level tracing
    - lifecycle (vm start/stop), threads, classloaders and classes
      being loaded/unloaded, garbage collection probes, methods being
      compiled by jits (C1/C2), monitors (wait/notify).
    example probes:
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2009-April/005445.html
  - Java method entry/exit tracing:
http://gnu.wildebeest.org/diary/2009/08/06/i-love-it-when-a-plan-comes-together-systemtap-meets-java/

  - Stuff that is now checked in icedtea6 mercurial, needs new release:
    - Native methods (JNI) tracing:
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2009-October/007384.html

  - Stuff that is now checked in icedtea6 mercurial, but also needs new
    new systemtap release (support is in systemtap git already):
    - Java backtraces from stap scripts:
http://gnu.wildebeest.org/diary/2009/12/15/next-step-systemtap-java-hotspot-jstack-support/
    This has one major drawback atm that it only works on one java
    process at a time (in the same stap script), and that you need to
    trace it from the start. Should probably be fixed/improved by
    extending systemtap support:
http://sourceware.org/bugzilla/show_bug.cgi?id=11096

  - Stuff that needs some double checking/cleanup:
    - Make jinfo (jinfo -flag +ExtendedDTraceProbes) work. It would make
      inspecting running java processes much easier. Might now work with
      aph's latest separate-debuginfo patch in IcedTea6.
    - Better documentation, examples, etc.
      Jon has posted something, just needs integrating and polishing:
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2009-December/007837.html

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           What    |Removed                     |Added
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            Summary|java documentation          |java documentation


http://sourceware.org/bugzilla/show_bug.cgi?id=11106

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